US PATENT SUBCLASS 264 / 290.2
.~.~.~ Biaxial or transverse to travel direction

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

239  DF  MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE {10}
280  DF  .~ Reshaping running or indefinite-length work {5}
288.4  DF  .~.~ Stretching by applying tension {5}
290.2.~.~.~ Biaxial or transverse to travel direction

DEFINITION

Classification: 264/290.2

Biaxial or transverse to travel direction:

(under subclass 288.4) Process wherein a moving workpiece is stretched in a direction at right angles to its direction of movement or in which a stationary, indefinite-length

work-piece is stretched in two perpendicular directions.

SEE OR SEARCH THIS CLASS, SUBCLASS:

138+, for a process wherein stretching is followed by removal of part of the workpiece.

235.8, for a process wherein biaxial stretching of a film is followed by heat-setting. When all of the claims of a patent include the heat setting step, the patent is preferably not cross-referenced to this subclass.